Glad to see that at least the ISS Titan is getting that third impulse engine... though I still think it'd work better down just under the hangar deck "strip" in the fantail area...
Oh, and I just have to say it once again.. I REALLY like these engines, more so than the same-factory-as-Akira ones (though I know that it makes sense to have done so). I'm curious, personally, what a non-ISS-paintjob would look like with these engines
One other question... it LOOKS like you underside-mounted thrust vents on the primary hull impulse housings. Is that what I'm seeing there? If so... is that something new, and if so... what's behind those?